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C2602 BMW Fault Code

Check C2602 OBD Fault Code Reason
Description:

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

C2602 Code Symptoms :

See C2602 in engine

When you turn on the ignition, the Service Engine Soon or Check Engine C2602 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the C2602!

Diagnosis And Repairing C2602

C2602 OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

How to fix C2602 code ?

See C2602 repair manual
  • Engine Control Module (ECM)
  • Faulty Air Flow Meter
  • Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
  • Variable Camshaft Timing solenoid stuck open

Gear changes are accomplished by a command from the BMW TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

BMW Cars that meet C2602 error